43039 has 4 divisors (see below), whose sum is σ = 43456. Its totient is φ = 42624.

The previous prime is 43037. The next prime is 43049. The reversal of 43039 is 93034.

43039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 43039 - 2¹ = 43037 is a prime.

It is a Duffinian number.

43039 is a lucky number.

It is a plaindrome in base 13.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82 + ... + 304.

It is an arithmetic number, because the mean of its divisors is an integer number (10864).

2⁴³⁰³⁹ is an apocalyptic number.

43039 is a deficient number, since it is larger than the sum of its proper divisors (417).

43039 is a wasteful number, since it uses less digits than its factorization.

43039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 43039 is about 207.4584295708. The cubic root of 43039 is about 35.0445690719.

The spelling of 43039 in words is "forty-three thousand, thirty-nine".